Electric kettle



FIG. 1 is a front, top, and left side perspective view of an electric kettle;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front, top, and left side perspective view of the electric kettle in a state where the electric kettle is separated into a main body and a base; and,

FIG. 8 is a front elevation view of the electric kettle in the state where the electric kettle is separated into the main body and the base.

The broken lines shown in the drawings represent portions of the electric kettle and form no part of the claimed design. 

CLAIM The ornamental design for an electric kettle, as shown and described. 